Triethylamine → HCID 123625959, compound

HRID 1509194Notes

Reaction equation

HRID 1509194 reaction equation
[C:1]([O:5][C:6](=[O:34])[NH:7][C:8]1([C:12]2[CH:17]=[CH:16][C:15]([C:18]3[C:19]([C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)=[CH:20][C:21]4[NH:26][CH2:25][CH2:24][O:23][C:22]=4[N:27]=3)=[CH:14][CH:13]=2)[CH2:11][CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:42][S:43](Cl)(=[O:45])=[O:44].C([O-])(O)=O.[Na+]>C(Cl)Cl>[C:1]([O:5][C:6](=[O:34])[NH:7][C:8]1([C:12]2[CH:13]=[CH:14][C:15]([C:18]3[C:19]([C:28]4[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=4)=[CH:20][C:21]4[N:26]([S:43]([CH3:42])(=[O:45])=[O:44])[CH2:25][CH2:24][O:23][C:22]=4[N:27]=3)=[CH:16][CH:17]=2)[CH2:11][CH2:10][CH2:9]1)([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 516892Sodium BicarbonateHCID 123843496HCID 123843496, compound

Product 1

HCID 123625959HCID 123625959, compoundYield 77%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of tert-butyl(1-(4-(7-phenyl-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazin-6-yl)phenyl)cyclobutyl)carbamate (50 mg, 0.11 mmol) in dry DCM (1 ml) was added triethyl amine (46 μl, 0.33 mmol) and methanesulfonyl chloride (26 μl, 0.33 mmol) under nitrogen. The resulting mixture was stirred for 1 hour at room temperature. A saturated solution of NaHCO3 was added and the mixture was extracted with dichloromethane (3×10 ml) using a phase separator (Isolute® SPE). The combined organic phases were concentrated to dryness under reduced pressure. The resulting residue was purified by Biotage silica gel chromatography (gradient 0 to 50% EtOAc in cyclohexane) to give the title compound (45 mg, 77%). 1H NMR (500 MHz, CDCl3): 8.00 (1H, s), 7.25 (2H, d), 7.19-7.17 (5H, m), 7.11-7.10 (2H, m), 4.95 (1H, s), 4.43 (2H, t), 3.90 (2H, t), 2.55-2.25 (7H, m), 2.06-1.98 (1H, m), 1.82-1.73 (1H, m), 1.44-1.15 (9H, br).

Workup

  1. extractionthe mixture was extracted with dichloromethane (3×10 ml)
  2. concentrationThe combined organic phases were concentrated to dryness under reduced pressure
  3. customThe resulting residue was purified by Biotage silica gel chromatography (gradient 0 to 50% EtOAc in cyclohexane)

Sources & evidence

ORD record
ord-fcd16973e03048a9905d4272a6c0b837
Source dataset
uspto-grants-2015_12
Patent number
US09221838B2

Reaction notes

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